Scraper



Aug.7, 1928. H

F. E. ARNDT SCRAPER 2 Sheets-Sheet 1 Filed Oct. 25, 1927 gwuento'a 2Edi/21d? Aug. 7, 1928.

F. E. ARNDT SCRAPER Filed Oct. 25, 1927 43 2 Sheets-Sheet 2 .z- -2 1-Snucnfoi! F E Jirrzdi Patented Aug. 7, 1928.

UNITED STATES 1, 79,393 PATENT OFFICE;

FRANKLIN E. ARND'I, F GALION, OHIO, ASSIGNOR TO THE GALION IRON WORKS6'0 MFG. 00., OF GALION, OHIO, A CORPORATION 01 OHIO.

BCRAPER.

Application filed October 25, 1927. ScriaI NO. 228,671.

This invention relates to scrapers and more particularly to a Fresnobucket construction arranged to be drawn by a tractor.

An important object of the invention is to provide a device of thischaracter so constructed that it may be controlled in all of itsmovements by an operator directing the movements of the tractor and insuch fashion that his attention is not distracted from the control ofthe tractor.

A further object of the invention isthe provision of a device of thischaracter so constructed that the necessity of manipulating the tractorother than in straight ahead travel to cause any of the operations ofthe bucket is eliminated.

A further and more specific object of the invention is to provide aconstruction of this character wherein the only actual connectionsbetween the bucket and the tractor are pivotal connections about whichthe bucket may rotate.

A still further object of the invention is to provide a construction ofthis character wherein the angular position of the bucket may be readilycontrolled, as regards both its loading and distributing positions, sothat in the first instance, compensation may be had for varying degreesof hardness of the soil acted upon and in the second instance, controlmay be had of the depth of the layer in which the soil is distributed.

A still further object of the invention is to provide a construction ofthis character,

' wherein the latching mechanism employed is disposed at thelongitudinal center of the bucket, so that a single latch will sufiiceand there is no tendency of the bucket to sine, as in the case wherelatches at opposite sides of the bucket are provided and one of theselatches disengages prior to the disengagement of the other.

These and other objects I attain by the construction shown in theaccompanying drawings, wherein for the purpose of illustration is showna preferred embodiment of my invention and wherein Figure 1 is a planView of a scraper constructed in accordance with my invention, portionsbeing broken away;

Figure 2 is a side elevation of the scraper;

Figure 3 is a central longitudinal sectional view therethrough, thescraper being shown in dotted lines in the distributing position and insolid lines in the position ivhiich it occupies when returning for aFigure 4 is a longitudinal sectional view showing the distributing stopin engagement with the controlling latch element and illustrating theadjustability of this sto Figure 5 is a plan view of the distri utm stopremoved.

eferring now more particularly to the drawings, the numeral 10 generallydesignates a bucket construction including a plate having a forwardcutting ed e 11 and an upturned rear portion 12. and walls 13 aresecuredto the plate and provided upon their outer faces adjacent the upperportions thereof is a trunnion 14.- To the inner face of each side wallis secured a runner support 15, which is preferably in the form of anangle bar, the intermediate portion of which is arcuately curved and theend portions of which, indicated at 16, are inwardly directed and atsubstantially right angles to one another. These end portions aresecured to the end walls 13, as indicated at 17. Each runner support 15has secured thereto a runner shoe 18 which is preferably bolted to therunner support to render the same readlly removable and the upper endsof the runner shoes terminate substantially in vertical alignment withthe trunnions 14.

Rearwardly of the upper ends of the runner shoes, the supports 15 areconnected by a transversely extending bar 19, at the longitudinal centerof which a latch element, generally designated at 20, is secured. Thislatch element is arcuately curved, having substantially the samecurvature as the runner shoe and is attached to the bar 19 adjacent itsforward or upper end and to the back of the bucket at the center thereofand adjacent its rear or lower end through a casting 21. The forward endof the latch element 20 is inturned to form a stop 22, while the rearend thereof is out-turned to form a second stop 23. Adjustably securedto the latch element intermediate the ends thereof is a casting 24including a transversely extending portion 25 forming :1

i third stop.

A draw bar is provided including bucket 1 engaging members 26, the rearends 27 of which are parallel and connected at their rear terminals tothe trunnions 14 and the forward ends 28 of which converge upon and aresecured to parallel members 29, the for- 1 ward ends of which areadapted at 30 for connection with the tractor. The forward ends of therearward portions 27 of the side members 26 are connected by atransversely extending bar 31 to which the rear ends of the parallelmembers 29 are secured.

Secured tothe parallel members, preferably by the securing elements 32connecting the bucket engaging members 26 thereto is a quadrant 33 forcoaction with a lever 34, the lower end of which is pivoted between theparallel members 29. This lever has latch mechanism, generallydesignated at 35, whereby it may be held in adjusted positions withrelation to the quadrant and has connccted thereto the forward end of alink 36. The link 36 is composed of two members, the rear ends of whichare spaced and receive therebetween a latch element 37 having adownwardly projecting nose 38.

Secured to the parallel members adjacent the rear ends thereof are thelower ends of a pair of supports 39 between the upper ends of which abent lever, generally designated at 40, is pivoted. Adjacent thesesupports, the link 36 extends and the supports are connected by atranverse element 41 serving as a limit for downward movement of thelink. One arm of this bent lever, indicated at 42, extends verticallyand has connected to the upper end thereof an operating element 43preferably in the form of a flexible cable, the opposite end of whichextends to the tractor and is preferably attached thereto at some pointconvenient to the hand of the operator. The second arm 44 of the leverextends rearwardly and is linked at its extremity to the link 36 by alink 45.

In the use of the apparatus, the nose 38, when engaged with the'stop 22,positions the bucket for filling and the angle at which the cutting edge11 is presented to the ground, may be adjusted by manipulation of thelever 34. As this lever is moved forwardly, the angle of the blade tothe ground increases and as it is moved rearwardly, it decreases. Toassist in the adjustment, the connection of the link 36 with the leveris adjusted preferably longitudinally of the lever, as generallydesignated at 46. The bucket drawn over the ground at the proper anglethereto when it arrives at the dumping position is released by a pullupon the operating member 43, by means of which, through the arm 44, therear end of the link 36 is elevated to disengage the nose 38 and stop22. When the release is effected, the operating element is released,permitting the nose to come in contact with the latch element 20 uponwhich it rides until the rotation of the bucket brings the stop 25 intoengagement therewith. At this time, the bucket rests upon the shoes 18and is so positioned that its blade 11 acts as a leveler, distributingthe load contained in the bucket be liable to damage the same.

in a smooth even layer'over the ground. Distribution having beencompleted, a second switch upon the operating element 43 releases thenose 38 from the stop 25 and positions the nose for engagement with thestop 23. When this stop comes into engagement with the nose, the bucketis held in suchposition that it moves upon the runner shoes 18 and isheld with its blade 11 well spaced from the ground, so that there is nodanger of contact therewith of stones or other upstanding obstructionswhich would Arriving at the lace from which the load is being taken, ath1rd twitch upon the operating member 43 releases the nose 38 from thestop 23, permitting the bucket to roll until the nose 38 again engageswith the stop 22.

It is pointed out that by the construction employed, the angle at whichthe blade is presented to the ground is made very readily adjustableand, at the same time, an adjustment is provided, as regards theposition of the bucket when dum ing, which may be adjusted to vary theayer provided without regard to the change of position of the nose 38,which is effected by the lever 34.

Since the construction hereinbefore set forth is capable of a certainrange of change and modification without materially departing from thespirit of the invention, I do not limit myself to such s ecificstructure except as hereinafter claimed.

I claim 1. In a scraper, a draw bar, a transversely extending scraperbucket rotatably engaged therewith and adapted to assume loading,dumping and transporting positions, a latch element supported from thedraw bar and a coacting latch element carried by the bucket and havingstops successively engaged by the first named latch element to checkrotation of the bucket in each of said positions and means operable atthe forward end of the draw bar for disengaging the first named latchelement, a lever pivoted to thetdraw bar adjacent the forward endthereof to swing longitudinally of the draw bar, means for holding thelever in adjusted positions, the first named latch element comprising alink pivoted at its forward end to the lever and having at its rear enda nose for engagement with said stops.

2. In a scraper, a draw bar, a transversely extending scraper bucketrotatably engaged therewith and adapted to assume loading, dumping andtransporting positions, a latch element supported from the draw bar anda coacting latch element carried by the bucket and having stopssuccessively engaged by the first named latch element to check rotationof the bucket in each of said positions and means operable at theforward end of the draw bar for disengaging the first named latchelement, a lever pivoted to the draw bar adjacent the forward endthereof, to

swing longitudinally of the draw bar, means link pivoted at its forwardend to the lever and having at its rear end a nose for engagement withsaid stops, the connection of the link with the lever being adjustablelongitudinally of the lever.

3. In a scraper, a draw bar, a transversely extending scraper bucketrotatably engaged therewith and adapted to assume loading, dumping andtransporting positions, a latch element supported from the draw bar anda coacting latch element carried by the bucket and having stopssuccessively engaged by the first named latch element to check rotationof the bucket in each of said positions and means operable at theforward end of the draw bar for disengaging the first named latchelement, a lever pivoted to the draw bar adjacent the forward endthereof to swing longitudinally of the draw bar, means for holding thelever in adjusted positions, the first named latch element comprising alink pivoted at its forward end to the lever and having at its rear enda nose for engagement with said stops, the stop controlling the bucketin its dumping position being adjustable longitudinally of the lastnamed latch element.

4. In a scraper, a draw bar,.a transversely extending scraper bucketrotatably engaged therewith and adapted to assume loading, dumping andtransporting positions, a latch element supported from the draw bar anda coacting latch element carried by the bucket and having stopssuccessively engaged by the first named latch element to check rotationof the bucket in each of said positions, the first named latch elementcomprising a link having a pivotal connection at its forward end withthe draw bar adjacent the forward end thereof, a pair of spaced supportsarising from the draw bar adjacent the rear end thereof and adjacentwhich said link extends, a connection between the supports limitingdownward movement of the link and a pivoted bent lever carried by theupper ends of said supports and having an arm extending rearwardly overthe link and linked thereto and an operating element secured to theupper end of the other arm of the lever and extending forwardlytherefrom.

5. In a scraper, a draw bar, a transversely extending scraper bucketrotatably engaged therewith and adapted to assume. loading, dumping andtransporting positions, a latch element supported from the draw bar anda coacting latch element carried by the bucket and having stopssuccessively engaged by the first named latch element to check rotationof the bucket in each of said positions, the first named latch elementcomprising a link having a pivotal connection at its orward extendingrearwardly over the link and end with the draw bar adjacent the forwardend thereof, a pair of spaced supports arising from the draw baradjacent the rear end thereof and adjacent which said link extends, aconnection between the supports: limiting downward movement of the linkand a pivoted bent lever carried by the upper ends of said supports andhaving an arm linked thereto and an operating element secured to theupper end of the other arm of the lever and extending forwardlytherefrom, the pivotal connection between the link and the forward endof the draw bar comprising a pivoted lever swingable longitudinally ofthe draw bar and to which the link is pivoted and means associated withthe link for securing the lever in adjusted positions.

6. In a scraper, a draw bar, a transversely extending scraper bucketrotatably engaged therewith and adapted to assume loading, dumping andtransporting positions, a latch element supported from the draw bar anda coacting latch element carried by the bucket and having stopssuccessively engaged by the first named latch element to check rotationof the bucket in each of said pos'tions, the first named latch elementcomprising a link having a pivotal connection at its forward end withthe draw bar adjacent the forward end thereof, a pair of spaced supportsarising from the draw bar adjacent the rear end thereof and adjacentwhich said link extends, a connection between the supports limitingdownward movement of the link and a pivoted bent lever carried by theupper ends of said supports and having an arm extending rearwardly overthe link and linked thereto and an opcrating element secured to theupper end of the other arm of the lever and extending forwardlytherefrom, the pivotalconnection between the link and the forward end ofthe draw bar comprising a pivoted lever swingable longitudinally of thedraw bar and to which the link is pivoted, means associated with thelever for securing the lever in adjusted positions, the pivotalconnection of the link with the lever being adjustable longitudinally ofthe lever.

7. In a scraper bucket, a draw bar, a bucket rotatably connectedtherewith and having runner shoes by which it is supported during aportion of the rotation, supports for said runner shoes, a barconnecting the supports, an arcuately curved latch element securedcentrally to said bar adjacent its upper forward end and centrally tothe back of the bucket adjacent its lower rear end, the ends of the barhaving radial terminal portions forming stops, a third stop secured tothe latch element intermediate the ends thereof and adjustablelongitudinally thereof, a, link pivoted at its forward end adjacent theforward end of the draw bar and having its rear end extending over thebucket and provided with a nose for enga ement with said stops and alever operabe from the forward end of the draw bar for elevating therear end of the link to disengage the nose from'an engaged stop.

8. In a scraper bucket, a draw bar, a bucket rotatably connectedtherewith and having latch element intermediate the ends thereof andadjustable longitudinally thereof, a link pivoted at its forward endadjacent the forward end of the draw'bar and'having its rear endextending over the bucket and provided with a nose for engagement withsaid stops, a lever operable from the forward end of the draw bar forelevating the rear end of the link to disengage the nose from an engagedstop, the pivotal connection between the link and the forward end of thedraw bar comprising a lever pivoted to the draw bar to swinglongitudinally thereof and to which the forward end of the link ispivoted and means for latching said bar in an ad'usted position.

9. n a scraper bucket, a draw bar, a bucket rotatably connectedtherewith and having runner shoesby which it is supported during aportion of the rotation, supports for said runner shoes, a barconnecting the supports, an arcuately curved latch element securedcentrally to said bar adjacent its upper forward end and centrally tothe back 0 the bucket adjacent its lower rear end,

the ends of the bar having radial terminal portions forming stops, athird stop secured to the latch element intermediate the ends thereofand adjustable longitudinally thereof, a link pivoted at its forward endadjacent the forward end of the draw bar and having its rear endextending over the bucket and provided with a nose for engagement withsaid" stops, a lever 0)(3l21bl(3 from the forward end of the draw ar forelevating the rear end of the link to disengage the nose from an engagedstop, supports for said lever extending upwardly from the draw bar andwith which the link is engaged for guidance and means connecting saidsupports limiting downward movement of the rear end of the link.

In testimony whereof I aflix my signature.

FRANKLIN E. ARNDT.

